Loretta Lynn has been forced to push back two upcoming shows in Iowa due to exhaustion, according to her rep."Lynn started feeling poorly midway through her three-week tour," her rep said in a statement posted on Lynn's website. "Loretta is ...

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Loretta Lynn has been forced to push back two upcoming shows in Iowa due to exhaustion, according to her rep.

"Lynn started feeling poorly midway through her three-week tour," her rep said in a statement posted on Lynn's website. "Loretta is a pro and wants to give her fans the best show possible. She felt she physically was unable to do that."

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Her rep added that the 81-year-old country singer is currently receiving treatment for exhaustion and taking some time off. This is the latest health setback for Lynn, who had to reschedule concerts in Oklahoma in September after suffering two broken ribs.

Lynn is currently on the road for a tour celebrating her five decades of performing.